I've had this type of experience myself...one of the more comprehensive starting points I found was MIT's OpenCourseWare site. They actually offer their entire Mathematics for Computer Science course materials (and a lot of other course materials for that matter) online, and for free. Here's the link to the Math course:
http://ocw.mit.edu/OcwWeb/Electrical-Engineering-and-Computer-Science/6-042JFall-2005/CourseHome/index.htm
It's not the be-all end-all of computer math, but it is a great place to get started, and figure out what other research you may need to gather.